Circular saw blade



FIG. 1 is a perspective view of a circular saw blade showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a left side elevation view thereof.

The details shown in broken line illustrate portions of the circular saw blade that form no part of the claimed design. 

CLAIM The ornamental design for a circular saw blade, as shown and described. 